CVE-2023-39975

krb5-devel: Kerberos is a network authentication system, which can improve the security of your network by eliminating the insecu...

CVE-2023-39975 is fixed in 16 products on 1 platform, first by ALAS2023-2023-321, released August 31, 2023. It is not reported as exploited. Patch Radar priority: High.

High
CVSS
8.8
Moderate
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0147
73rd percentile

Kerberos is a network authentication system, which can improve the security of your network by eliminating the insecure practice of sending passwords over the network in unencrypted form. It allows clients and servers to authenticate to each other with the help of a trusted third party, the Kerberos key distribution center (KDC). Security Fix(es): * krb5: Denial of service through freeing uninitialized pointer (CVE-2023-36054) * krb5: double-free in KDC TGS processing (CVE-2023-39975) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. Additional Changes: For detailed information on changes in this release, see the Red Hat Enterprise Linux 9.3 Release Notes linked from the References section.

Where it's fixed

ProductFixed inFixReleased
Linux
krb5 · rocky 9 0:1.21.1-10.el9_8 RLSA-2023:6699 May 28, 2026
krb5-debuginfo · amzn 2023 1.21-3.amzn2023.0.3 ALAS2023-2023-321 Aug 31, 2023
krb5-debugsource · amzn 2023 1.21-3.amzn2023.0.3 ALAS2023-2023-321 Aug 31, 2023
krb5-devel · RHEL 9 0:1.21.1-1.el9 RHSA-2023:6699 Nov 7, 2023
krb5-devel · almalinux 9 1.21.1-1.el9 ALSA-2023:6699 Nov 7, 2023
krb5-devel · amzn 2023 1.21-3.amzn2023.0.3 ALAS2023-2023-321 Aug 31, 2023
krb5-devel · ol 9 0:1.21.1-1.0.1.el9 ELSA-2023-6699 Nov 11, 2023
krb5-libs · RHEL 9 0:1.21.1-1.el9 RHSA-2023:6699 Nov 7, 2023
krb5-libs · almalinux 9 1.21.1-1.el9 ALSA-2023:6699 Nov 7, 2023
krb5-libs · amzn 2023 1.21-3.amzn2023.0.3 ALAS2023-2023-321 Aug 31, 2023
krb5-libs · ol 9 0:1.21.1-1.0.1.el9 ELSA-2023-6699 Nov 11, 2023
krb5-libs-debuginfo · amzn 2023 1.21-3.amzn2023.0.3 ALAS2023-2023-321 Aug 31, 2023
krb5-pkinit · RHEL 9 0:1.21.1-1.el9 RHSA-2023:6699 Nov 7, 2023
krb5-pkinit · almalinux 9 1.21.1-1.el9 ALSA-2023:6699 Nov 7, 2023
krb5-pkinit · amzn 2023 1.21-3.amzn2023.0.3 ALAS2023-2023-321 Aug 31, 2023
krb5-pkinit · ol 9 0:1.21.1-1.0.1.el9 ELSA-2023-6699 Nov 11, 2023
krb5-pkinit-debuginfo · amzn 2023 1.21-3.amzn2023.0.3 ALAS2023-2023-321 Aug 31, 2023
krb5-server · RHEL 9 0:1.21.1-1.el9 RHSA-2023:6699 Nov 7, 2023
krb5-server · almalinux 9 1.21.1-1.el9 ALSA-2023:6699 Nov 7, 2023
krb5-server · amzn 2023 1.21-3.amzn2023.0.3 ALAS2023-2023-321 Aug 31, 2023
krb5-server · ol 9 0:1.21.1-1.0.1.el9 ELSA-2023-6699 Nov 11, 2023
krb5-server-debuginfo · amzn 2023 1.21-3.amzn2023.0.3 ALAS2023-2023-321 Aug 31, 2023
krb5-server-ldap · RHEL 9 0:1.21.1-1.el9 RHSA-2023:6699 Nov 7, 2023
krb5-server-ldap · almalinux 9 1.21.1-1.el9 ALSA-2023:6699 Nov 7, 2023
krb5-server-ldap · amzn 2023 1.21-3.amzn2023.0.3 ALAS2023-2023-321 Aug 31, 2023
krb5-server-ldap · ol 9 0:1.21.1-1.0.1.el9 ELSA-2023-6699 Nov 11, 2023
krb5-server-ldap-debuginfo · amzn 2023 1.21-3.amzn2023.0.3 ALAS2023-2023-321 Aug 31, 2023
krb5-workstation · RHEL 9 0:1.21.1-1.el9 RHSA-2023:6699 Nov 7, 2023
krb5-workstation · almalinux 9 1.21.1-1.el9 ALSA-2023:6699 Nov 7, 2023
krb5-workstation · amzn 2023 1.21-3.amzn2023.0.3 ALAS2023-2023-321 Aug 31, 2023
krb5-workstation · ol 9 0:1.21.1-1.0.1.el9 ELSA-2023-6699 Nov 11, 2023
krb5-workstation-debuginfo · amzn 2023 1.21-3.amzn2023.0.3 ALAS2023-2023-321 Aug 31, 2023
libkadm5 · RHEL 9 0:1.21.1-1.el9 RHSA-2023:6699 Nov 7, 2023
libkadm5 · almalinux 9 1.21.1-1.el9 ALSA-2023:6699 Nov 7, 2023
libkadm5 · amzn 2023 1.21-3.amzn2023.0.3 ALAS2023-2023-321 Aug 31, 2023
libkadm5 · ol 9 0:1.21.1-1.0.1.el9 ELSA-2023-6699 Nov 11, 2023
libkadm5-debuginfo · amzn 2023 1.21-3.amzn2023.0.3 ALAS2023-2023-321 Aug 31, 2023

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